Boring-machine.



M. L. ANDREW.

301mm MACHINE. APPLICATION EILIBD JULY-20, 1908.

Patented; Feb. 9, 1909.

Wifnesss (Emil/"5% M b (5 MOSES L. ANDREW, OF DELHI, OHIO;

BORING-MACHINE.

Specification of Letters Fatent.

Patented Feb. 9, 1909.-

Application filed July 20, 1908. Serial No. 4%,33.

T call whom 'it may concern:

Be it known that 1, Moses L. ANDREW, a citizen of the United States, residing at Delhi, Hamilton county, Ohio, have invented certain new and useful Improvements in Boring-Machines, of which the following is a specification,

This invention relates to'improvements in multiple spindle wood boring machines, and the improvements will be readily understood from the following description taken in connection with the accompanying drawing in which Figure 1 is a front elevation of a boring machine embodying my present invention:

Fig. 2 a vertical transverse section of the up per portion of the machine in a planebetween two of the spindle-brackets: Fig. 3 a vertical transverse section of the upper portion of the machine in the plane of one of the spindle brackets: Fig. 4 a side elevation of the table bracket, the table appearing in vertical transverse section: and Fig. 5 a vertical transverse section of the table.

In the drawing :-1, indicates the column of the machine: 2, the table-bracket sliding vertically on the front thereof: 3, the tablestem sliding vertically in the outer portion of the table-bracket: 4, the horizontal table supported by the upper end of the tablestem: 5, segmentally slotted ears projecting downwardly from the table and straddling the upper end of the table-stem: 6, bolts engaging the head of the table-stem and the slots of the table ears: 7, diagonal braces having their lower ends secured to the sides of the foot of the table stem and diverging upwardly into connection with the table: 8, pivots uniting the upper ends of the braces with the table, the common axis of these pivots being in line with the axis of the segmental slots in the table ears: 9, a treadle pivoted to the column and projecting forwardly under the table: 10, a lever pivoted in the table-bracket: 11, a link connecting the forward end of this lever with the tablestem: 12, a rod projecting downwardly from the rear end of the lever: and 13, a link-member connecting the treadle adjustably with the lower end of rod 12.

The table slides vertically in the usual manner, its sliding motion being produced by any of the usual table-moving devices employed in this class of machines the treadle and its connections being merely typical in character. The braces give substantial support to the outer portions of the table, and the pivot e, in conjunction with the bolt and slot arrangement at the tableears permits of the table being adjusted to various transverse angles. I

l'roceeding with the drawing :-14, indicates a rail secured to the top OI the column above the table: 15, a central longitudinal slot in the rail: 16, longitudinal slots in the rail above and below the slot l5: 17, a block fitted to slide horizontally in slot 15 and pro ecting to the front and rear of the rail and provided with a bearing extending longitudinally through it, there being one of these blOCKS for each of the boring spindles with which the machine is to be provided, six being illustrated in the drawing: 18, a splined. shaft extending along horizontally to the rear of the rail and supported in journal-brackets projecting from the rear of the rail: 19, tight and loose pulleys on one end of the splined shaft to provide for belt motion being imparted to the splined shaft: 20, a horizontal shaft journaled in each of the blocks 17: 21, a vertical spindle-bracket lying against the front face of the rail, at each of the blocks 17 and swiveled on the forward ends of the blocks in such manner that the brackets may stand vertically or be turned at various angles from the vertical while still lying against the rail: 22, bolts passing through rail-slots l6 and through vertical slots in the brackets and serving to clamp the brackets firmly against the rail: 23, boring spindles journaled in upper and lower bearings projecting forwardly from the brackets and provided with usual devices for moving them endwise and for carrying boring bits in their lower ends: 24, bevel gearing connecting each of the boring spindles with its appropriate one of shafts 20: and 25, bevel gearing connecting each of shafts 20 with splined shaft 18.

The splined shaft transmits motion to the entire series of boring-spindles in an 0bvious manner, and by loosening bolts 22 the individual brackets and their accessories may, after adjustment along the rail, be desired distance between the holes to be produced by the boring-bits. The brackets may, after adjustment along the rail, be bolted in vertical position so as to do their boring at right angles to the face of the table or, if desired, all or any one of the brackets may be adjusted angularly so as to do boring at angles to each other and to the face of the table, the boring bits and their spindles always remaining in a plane parallel with the face of the rail. At the same time the table may be adjusted so that its face Will be transversely at an angle to the common plane of the boring-spindle, whereby all of the boring bits may bore parallel with each other and at right angles to the transverse plane of the table or at other angles to the transverse plane of the table, or at angles to each other in their common plane.

I claim 1. A boring machine comprising, a horizontal rail provided with a central horizontal slot and with a slot above and below the central one, a splined shaft ournaled to the rear of the central slot of the rail, a block fitted to slide in the central slot, a bracket lying against the face of the rail and swiveled upon the forward end of the block and provided with vertical slots across the upper and lower slots of the rail bolts engaging the vertical slots of the bracket and the upper and lower slots of the rail, a vertically. movable boring spindle journaled in thefront of the bracket, a shaft journaled in said block, bevel gearing connecting the front end' of the shaft with the boring spindle, bevel gearing connecting the rear end of the shaft with the splined shaft, and a worktable disposed below the boring spindle, combined substantially as set forth.

2. A boring machine comprising, a column, a bracket projecting therefrom, a

table-stem sliding vertically in the bracket, a table connected with the upper end of the tablestem, a pivotal connection between the table and the table-stem to permit the table to be adjusted to various transverse angles, upwardly converging braces having their lower ends connected with the sides of the foot of the table-stem, and pivots connecting the upper ends of the braces with the table and having their axes in a common line and in line with the pivotal connection between the table and the upper end of the tablestem, combined substantially as set forth.

3. A boring machine comprising, a rail, a

series of spindle-brackets secured to the face F thereof in a common plane parallel with the face of the rail, connections between the brackets and the rail providing for the adjustment of the brackets at angles to each other while remaining in their common 1 plane, bearing-spindles journaled in the brackets, a table extending along under the spindles, a support for the table, and a pivotal connection between the table and its support and having its axis parallel with the common plane of the brackets, combined substantially as set forth.

MOSES L. ANDREV. l Vitnesses MARY W. MA'rsoN, lilARIE XV. llLlAlSON. 

